Find a new contractor!
Take a look at some robbing screens. or a piece of screen over all entrances. Staple them on or use duct tape. If the job will only take a day no big deal. If its a multi-day job every evening when he leaves open them up and close them back up early in the morning. This gives them all night to beard and cool off a little. This time of year I personally wouldn't want to keep them closed up because it's hot. My 2 cents.
-Dan
Take a look at some robbing screens. or a piece of screen over all entrances. Staple them on or use duct tape. If the job will only take a day no big deal. If its a multi-day job every evening when he leaves open them up and close them back up early in the morning. This gives them all night to beard and cool off a little. This time of year I personally wouldn't want to keep them closed up because it's hot. My 2 cents.
-Dan